Primordial black holes (PBHs) could provide the dark matter but a variety of constraints restrict the possible mass windows to $10^{16}$ - $10^{17}\,$g, $10^{20}$ - $10^{24}\,$g and $10$ - $10^{3}\,M_{\odot}$. The last possibility is contentious but of special interest in view of the recent detection of black-hole mergers by LIGO/Virgo. PBHs might have important consequences and resolve various cosmological conundra even if they have only a small fraction of the dark-matter density. In particular, those larger than $10^{3}\,M_{\odot}$ could generate cosmological structures through the `seed' or `Poisson' effect, thereby alleviating some problems associated with the standard cold dark matter scenario, and sufficiently large PBHs might provide seeds for the supermassive black holes in galactic nuclei. More exotically, the Planck-mass relics of PBH evaporations or stupendously large black holes bigger than $10^{12}\,M_{\odot}$ could provide an interesting dark component.

中文翻译：

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作为暗物质的原始黑洞：最近的发展

原始黑洞 (PBH) 可以提供暗物质，但各种约束将可能的质量窗口限制为 $10^{16}$ - $10^{17}\,$g, $10^{20}$ - $10^{24 }\,$g 和 $10$ - $10^{3}\,M_{\odot}$。考虑到 LIGO/Virgo 最近检测到的黑洞合并，最后一种可能性是有争议的，但特别令人感兴趣。PBHs 可能会产生重要的后果并解决各种宇宙学难题，即使它们只有一小部分暗物质密度。特别是那些大于 $10^{3}\,M_{\odot}$ 的可以通过“种子”或“泊松”效应产生宇宙学结构，从而缓解与标准冷暗物质场景相关的一些问题，并且足够大PBH 可能为星系核中的超大质量黑洞提供种子。更有异国情调，